/*   The MIT License
 *   
 *   Carina Engine
 *   Copyright (c) 2009 2010 2011 2012 Zdravko Velinov
 *   
 *   Permission is hereby granted, free of charge, to any person obtaining a copy
 *   of this software and associated documentation files (the "Software"), to deal
 *   in the Software without restriction, including without limitation the rights
 *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *   copies of the Software, and to permit persons to whom the Software is
 *   furnished to do so, subject to the following conditions:
 *
 *   The above copyright notice and this permission notice shall be included in
 *   all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *   THE SOFTWARE.
 */

#ifndef _CARINA_SHADER_PROGRAM_HH_
#define _CARINA_SHADER_PROGRAM_HH_

#include "carina/common/global.hh"
#include "carina/common/containers.hh"
#include "carina/renderer-base.hh"
#include "carina/material-manager.hh"
#include "carina/ast.hh"

namespace Carina
{
class Material;
class ResourceManager;
struct MaterialProfile;

class ShaderProgramSet
{
#ifdef CE_RELOADABLE_RESOURCES
    string              m_FileName;
#endif
    typedef std::unordered_map<string, ShaderProgramPtr> ShaderProgramCache;
    typedef std::unordered_map<string, Material>         MaterialCache;
    ShaderProgramCache  m_Programs;
    MaterialCache       m_Materials;
public:
    ShaderProgramSet(ResourceManager& res_mgr, const string& filename);
     ~ShaderProgramSet();

    ShaderProgramPtr getShaderProgram(const string& name);
    ShaderProgramPtr getShaderProgram();
    size_t getShaderProgramCount() const;

    void getMaterial(const string& name, Material& material) const;
    void getMaterial(Material& material) const;
private:
    void loadVariables(const AST::List* _list, const ShaderProgramPtr& shader, MaterialProfile& map);
    bool reloadShader(const string& name);
};
}

#endif /* _CARINA_SHADER_PROGRAM_HH_ */